Coating-machine



H. M. NICHQLLS.

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APPLICAHON FILED JAN.8, 1921'.

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Patented Dec.13, 1921.

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COATING MACHINE. APPL ICAHON FILED JAN-8,1921- Patented Dec. 13, 1921,

UNITED STATES PATENT OFFICE.

HENRY M. NIGHOLLS, OF LOCKPOR'I, NEW YORK.

COATING-MACHINE.

Specification of Letters Patent. Patented D c 13 1921 Application filedJanuary 8, 1921. Serial No. 435,964.

To all whom it may concern.

Be it known that I, HENRY M. NIoHoLLs, a citizen of the United States,residing; at Lockport, in the county of Niagara and State of New York,have invented certain new and useful Improvements in Coatingwhich willbe comparatively inexpensive to manufacture and more certain andefiicient in action than those which have been heretofore proposed.

With these and other objects in view, the invention consists in thenovel. details of construction and combinations of parts morefullyhereinafter disclosed and particularly pointed out in the claims.

Referring to the accompanying drawings forming a part of thisspecification in which like numerals designate like parts in all theviews:

Figure 1 is a diagrammatic side elevational view partially broken awayof a machine made in accordance with this invention;

Fig. 2 is a lan view of the parts shown in Fig. 1; and

Fig. 3 is a sectional view takenon' the line -33 of Fig. 2 looking inthe directionsaturate it, it is well known that the strip of. felt inthreading through this tank, passes over rolls on the top of the tank Iand down under rolls immersed in the liquid asphalt, whence it passesagain upwardly over other rolls which are located on top of the tank. Itis also well known that should the felt strip not be started exactlyright over the first upper roll, or should it get started more or lesswrong in its pathv urin the coating operation, a great deal of di cultyarises, owing to the'fact that ,the said felt strip will have a tendencyto move toward one end or the other of the said rolls.

Stated in other language, there has always been encountered a great dealof difficulty in the saturating tank to get the paper to run straight.The paper is carried out of a straight path sometimes on account of aslippage which it ex eriences due to the properties of the liqui asphaltand to the var ations in the thickness of the paper itself which Wlllcause the paper, even tho gh it be started straight at first, to creepfirst to one side and then to the other side of the tank. This saidcreeping of the saturated paper ir felt, will ultimately cause abreakage and therefore a loss in production.

I have observed also that in the manufacture of this said asphalt coatedpaper the sheet or strip is apt to travel to that side of the roll overwhich it first gets started wrong, and I have therefore devised a meansof lowering or raising one end 01 each of the lOWer or immersed rolls soas to correct the path of the paper in the saturating tank after it hasonce gone wrong, and thus guide the paper in a perfectly straight paththroughout the saturating operation, and have thus succeededin'increasing the efficiency of the apparatus.

The means by which these desirable results are accomplished will beunderstood from the following description of the drawings, in which 1indicates any suitable tank for holding molten asphalt or other liquidcoating material, 2, 3, and 4 stationary guide rolls mounted on saidtank, and 5 brackets carried on the outside of said tank for holdin thevertically disposed pairs of standar s 6 and 8 resting on the floor 7 orother support of said tank, as best shown in Figs. 2 and 3. The upperportions of one pair of the standards 6 and 8. are joined by a member 9carrying the screw shaft 10 operated by the hand wheel 11, working inthe nut 12 carried by the slidable member 13, all as will be clear fromFigs. 1 and 2.

Itthus results that as the wheel 11 and screw shaft 10 are turned themember 13 may be moved up and down relative to standards 6 and 8.

' Each standard 6 is provided with a connecting member such as 14 and 15slidable on its own standard 6, and overlying the top edge of thetank 1. Likewise, each of the standards 8 is provided with a similarconnecting member such as 16 and 17 disposed similarly to the members 14and 15. Said members 14 and 15 are provided with the lugs 18 throughwhich passes the resilient or easily bendable rod 19 andv saidconnecting members 16 and 17 are provided with the lugs 20 through whichpasses the resilient or easily bendable rod 21. The

rods 19 and 21 are provided with the pinions 22 taking in the racks 23with which the inner pairs of standards 24 and 25 are provided.

It thus results that upon turning the handles 26 carried by the rods 19and 21,

the pinions 22 will raise and lower the racks 23 and with the latterwill move the inwardly pairs of standards 24 and 25. During this lastmentioned motion, the connections 14 and 15, 16 and 17, will remainstationary and serve as guides for said pairs of standards 24 and 25, aswill be readily understood.

At the lower ends of the pair of standards 24 is supported on suitablebearings a lower roll 30, and at the lower ends of the pair of standards25 is supported a lower roll 31. The strip of felt 32 or other ma.-terial to be coated, as will be clear from Figs. 1 and 2, first passesover the stationary roll 2 down into the tank 1, under the lower roll30, up'out of said tank over the stationary roll 3, down into the tankunder a second lower roll 31 and up out of the tank over a stationaryroll 4, whence it may be passed one or more times down into the-tankagain, or else if sufficiently coated, it may be carried out of the tankresult, I, in this machine, turn the hand wheel 11 so as to moveupwardly or downwardly the cross member 13, whose ends 35 underlie theextreme ends 36 of the members 15 and 17, see Fig. 1, so that said ends36 will be moved upwardly or downwardly, all aswill be clear from thefull lines in Fig. 1 and the dotted lines in Figs. 1 and 3.

The movement of the said ends 36 of the two members 15 and 17 will causecorresponding movements of the lugs 18 and 20 of the said members 15 and17, and therefore, said movements will cause corresponding movements inthe handle portions of the resilient or bendable rods 19 and 21 and inthe pinions 22 carried by said rods. But, owing tothe resilient natureof the said rods the pinions 22 located near the ends of the said rodsopposite to the handles 26 will not be moved. The movements of thesesaid first named pinions 22 will. cause corresponding movements of thecorresponding standard 24 and in the corresponding standard 25 which canslide upwardly and downwardly through the said connecting members 15 and17 respectively.

Stated in other language, since there is nothing to prevent the saidlast two mentioned standards 24 and 25 from rising, supposing themovement of the ends 35 to be upwardly, then the corresponding pinions22 meshing with said standards 24- and 25 will rise with thecorresponding lugs 18 and 20 and will carry said standards 24 and 25bodily upward, thus canting the rolls 30 and 31, as will be clear fromFigs. 1 and 3. Should it be desired to cant the rolls 30 and 31 in anopposite direction it is only necessary to lower the member 13,whereupon the members 15 and 17 will be lowered. and with them thecorresponding ends of the rolls 30 and 31, so that no matter in whichdirection the wheel'll .is turned, there will be a. canting of the twoaxes of the rolls 30 and 31, as is indicated by the lines 40, and 41,shown in Fig. 3.

Suitable pawls shown in Fig. 1, but not lettered, prevent the pinions 22from turning during the above described operations. When, however, thehandles 26 are turned, said pawls are thrown out of engagement by hand.

It'therefore follows that an adjustment of the wheel 11 will slightlycant the axes of the rolls 30 and 31 to the end that the path of thefelt or other strip 32 may be kept straight at alltimes.

Of course, it is obvious that other materials than felt and paper may becoated by this machine, and it is further obvious that other materialsthan asphalt may be used in the tank 1.

Accordingly, it is obvious that those skilled in the art may vary thedetails of construction as well as the arrangement of parts withoutdeparting from the spirit of the invention, and therefore I do not wishto be limited tothe above disclosure except as may be required by theclaims.

4 What I claim is:

1. In a machine for coating flexible material the combination of acontainer for the coating composition; a guide roll for said flexiblematerial located outside said container; a guide roll for said materialimmersed in said composition; means comprising a slidable horizontallydisposed member to cant the, axis of said last named roll during thecoating operation; and a screw means substantially said container; amovable guide roll forsaid material immersed in said composition;slid-able, horizontally disposed means to vertically move one end of theaxis of said last named roll during the coating operation; and a screwmember to actuate said means, substantially as described.

3. In a machine for coating a fabric with a roofing composition thecombination of a pluality stationary guide rolls for said fabrica tankfor said composition; a guide roll immersed in) said composition underwhich said fabric is adapted to pass; means comprising a slidable,horizontally disposed member to move vertically one end of said rollrelatively to the other while said fabric is passing thereunder; and ascrew memher to actuate said means, substantially as described.

i. In a machine for coating a fabric with a roofing composition thecombination of a plurality of stationary guide rolls for said fabric; atank for said composition; a guide roll immersed in said compositionunder which said fabric is adapted to pass; vertically disposed meansfor adjusting said last named roll up and down in said tank; and meansto move a portion of said adjusting means to displace vertically one endof said roll relatively to the other While said fabric is passingthereunder substantially as described.

5. In a machine for coating a fabric with a roofing composition thecombination of aplurality of stationary guide rolls for said fabric; atank for said composition; a guide roll immersed in said compositionunder which said fabric is adapted to pass; supports insaid tank forsaid roll, means comprising racks and pinions for moving said supportsup and down in said tank; and means comprising a screw means andconnections to move vertically a portion of end of said last named rollsmay -a plurality of vertically Y i said supports to cant one end of saidroll relatively to the other while said fabric is passing thereunder,substantially as described.

6. In a machine for coating a fabric with a roofing composition thecombination of a plurality of stationary guide rolls; a pluality ofmovable guide rolls; a tank for the coating composition in which saidlast named rolls are located; and means comprising a pair of standardslocated outside of said tank, a screw means and connections by which oneend of said last named rolls may be adjusted up and down relatively tothe other end of said last named rolls, substantially as described.

7. In a machine for coating a fabric with a roofing composition thecombination of a plurality of stationary guide rolls; plurality ofmovable guide rolls; a plurality of movable standards carrying racks forsupporting said last named rolls; a tank for the coating composition inwhich said last named rolls are located; means for moving said standardsand racks up and down in said tank; and means comprising a pair ofstandards located outside of said tank; a screw means; and connectionsby which one be adjusted up and down relatively to the other end of saidlast named rolls, substantially as described.

; 8. In a coating machine the combination of a tank; a plurality of stacarried by said tank; a plural' tionary standards located outsidelocated inside said tanl tween said first named an standards; rack andpini o' moi said last named standards up an down: a plurality of movableguide rolls carried by said last named st idards; and means forincliningto the ver al the axes oi said movable guide rolls while themachine is running, substantially as described.

In testimony whereof affix my signature.

I-IniN M. NI Ii-IOLLS.

